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How do you increase the power output of the Kenwood TS-440S Ham radio?
Wiki User
∙ 16y ago
Not enough information to give a simple answer.. however, a Kenwood TS-440S or S/AT either one should put out about 100-110 watts of RF power. The best way to determine this is to transmit a CW tone into a dummy load and read the power out on a known "good" wattmeter. If you are seeing about 100 watts, you are doing good!
There are no tweeks to actually get the power up inside the radio, and any that you try will over drive the solid state finals and they will burn up.
Some new hams think that since 100w is good, 125w or 150w has got to be better, however in reality, and from my experience it does take about 500w to get at least 1 S unit better on the receiving station. That said, trying to get over 100w on a radio that is designed to only do 100w it both fruitless and risky for the circuits.
If you are not getting 100w (up to 90w is good enough), but are much less, say 75w, you may want to find a repair facility that can examine the rig for repairs.
If you really need more power (QRO), I suggest running an RF amplifier using the TS-440S as the exciter, or driver.
Good luck,
Andrew
Wiki User
∙ 16y ago
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